package org.ofbiz.sys;


import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletResponse;

public class CrossOriginControl implements Filter{
    private boolean isCross = false;

    @Override
    public void destroy() {
        isCross = false;
    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response,
            FilterChain chain) throws IOException, ServletException {
        if(isCross){
            HttpServletResponse httpServletResponse = (HttpServletResponse)response;
            httpServletResponse.setHeader("Access-Control-Allow-Origin", "*");  
            httpServletResponse.setHeader("Access-Control-Allow-Methods", "POST, PUT, GET, OPTIONS, DELETE");  
            httpServletResponse.setHeader("Access-Control-Max-Age", "0");  
            httpServletResponse.setHeader("Access-Control-Allow-Headers", "Origin, No-Cache, X-Requested-With," +
            		"X_Requested_With, If-Modified-Since, Pragma, Last-Modified, " +
            		"Cache-Control, Expires, Content-Type, X-E4M-With,token,tokenId,X-Access-Token,"
            		+ "x-requested-with,content-type,Authorization");  
            httpServletResponse.setHeader("Access-Control-Allow-Credentials", "true");  
            httpServletResponse.setHeader("XDomainRequestAllowed","1");  
            
            
        }
        chain.doFilter(request, response);
    }

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        String isCrossStr = filterConfig.getInitParameter("IsCross");
        isCross = isCrossStr.equals("true")?true:false;
    }
}
